International Journal of Computer Science Issues

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Sorting data is an important problem for many applications. Parallel sorting is a way to improve sorting performance using more nodes or threads e.g. dividing data in more nodes and perform sorting in each node simultaneously or including more threads in process of sorting. It was experimented with one type...

The data mining is vast field with application found in many areas such that science, industrial problems and business. The data mining system architecture has the several main components database, data warehouse or other information repositories, a server that extract the related data from repositories based on user request. The...

Acoustic noise has become a serious problem as the number of industrial equipment such as engines, blowers, fans, compressors and transformers are increased. This paper proposed Active Noise Control (ANC) system by using Field Programmable Gate Array (FPGA) kit, it has been conducted through Least Mean Square (LMS) algorithm in...

In this paper, the authors present a simple model for declarative specification of the structure of documents for web-based content management. The proposed model allows the description of the hierarchical structure of multi-lingual documents, relationships and organization among documents of same type. They specify this model in a way that...

In this paper, the authors proposed three virtualization modes: VMware, parallels and boot camping. The tradeoff of their testing is the hardware requirements. The main question is, among the three, which is the most suitable? The answer actually varies from user to user. It depends on the user needs. Moreover,...

Fault diagnosis has attracted extensive attention for its importance in the exceedingly fault management framework for cloud virtualization, despite the fact that fault diagnosis becomes more difficult due to the increasing scalability and complexity in a heterogeneous environment for a virtualization technique. Most existing fault diagnoses methods are based on...

Attribute-Based Encryption (ABE) can be used for implementing fine-grained data sharing in cloud computing. However, most of the existing ABE schemes cannot realize attribute extension and provable security simultaneously. In this paper, the authors propose a fine-grained attribute-based data sharing system based on a hybrid encryption mechanism. A rigorous security...

Source camera identification is the process of discerning which camera has been used to capture a particular image. This paper has focused on analyzing the relationship between mobile enabled cameras and the photographs. Mobile cameras are typically low-end cameras equipped on hand-held devices such as personal digital assistants and cellular...

Data mining is wide spreading its applications in several areas. There are different tasks in mining which provides solutions for wide variety of problems in order to discover knowledge. Among those tasks association mining plays a pivotal role for identifying frequent patterns. Among the available association mining algorithms Apriori algorithm...

Road is a land transportation infrastructure which is used to connect one place to another. Since there are many roads in every province, it is a requirement for the government to conduct a road data collection. All this time the data collection is still conducted manually, therefore it is very...

In this paper, the authors have proposed different approaches to achieve an admission control which can highly guarantee a Quality of Service (QoS) in distributed multimedia systems. Through this paper, they propose a new method for admission control in distributed multimedia systems namely a Feedback Control Architecture for Distributed Multimedia...

Cloud computing is a paradigm which involves delivering hosted services over the internet and is predicted as the next generation of information technology architecture whose high potentiality enhances efficiency and reduces the costs. Although cloud computing is still considered as a young field, it has to deal with challenges such...

In this paper, the authors proposed a comprehensive survey of methodologies and techniques used for recommendation systems. Recommendation shows significant part in many fields and has become a great attention in the field of research. Important factor for the searching and recommendation system is to recognize and recognize user's personalized...

Design and analysis place crucial role in establishing the models of the software maintainability. Understandability, modifiability and analyzability are the maintainability factors with UML specifications of the class diagrams in Object-Oriented Design (OOD). In this paper, the authors include two more levels one is at the lowest and another one...

E-learning is a process in which the electronic medium is used to access the defined set of applications and processes. With its increasing identification and recognition in academic and corporate world, a unique model or framework is required. E-learning is a critical support mechanism for educational institutions to grow the...

Based on existing software testability models for object oriented software, the authors have proposed a new testability assessment model for object oriented software. The model is based on those six important internal programming features of object oriented design which are not used before together at the same time in-spite of...

Cloud computing is basically virtual pool of resources and it provides these resources to its users via internet as services who use them as when needed basis. On demands of user's data confidentiality and privacy the data is stored in cloud server as encrypted. Ideally, to maintain the security of...

In order to incorporate the customer into the early phase of the product development cycle and to better satisfy customers' requirements. A need for effective integration of suppliers into the product value/supply chain will be a key factor for achieving this goal. Various decision making approaches have been proposed to...

Information today has gone from scarce to superabundant which brings immense new benefits but complementary big headache too. Users are surrounded only data. From where this data has flooded they hardly have time to track that. Today every bit of data is important and hence stored. The actual problem is...

In this paper, the authors study the use of overlapping and non-overlapping camera layouts in estimating the ego-motion of a moving robot. To estimate the location and orientation of the robot, they investigate using four cameras as non-overlapping individuals and as two stereo pairs. The pros and cons of the...

Clustering is a technique to group the data objects in such a way that the data objects of a group are similar to each other in that group and dissimilar to the data objects of other groups. It is being performed for the diverse purpose such as statistical data analysis...

Cloud computing is one of the growing technology in computer science and an established way for sharing and accessing resources via internet. Load balancing is a method of reassigning the total load to the entity nodes of the collective system to create resource utilization useful and to improve the response...

Speaker identification comes under the field of digital signal processing. The earliest systems were based on acoustic phonetics built for automatic speech recognition. For recognition part these systems used pattern matching and spectrum analysis. With recent advancement in technology voice recognition has become one of the efficient measure that is...

Service sharing is a prominent operating model to support business. Many large inter-organizational networks have implemented some form of value added integrated services in order to reach efficiency and to reduce costs sustainably. Coupling service orientation with enterprise architecture paradigm is very important at improving organizational performance through business process...

Extraction, Transformation and Loading (ETL) are the major functionalities in Data Warehouse (DW) solutions. Lack of component distribution and interoperability is a gap that leads to many problems in the ETL domain, because these ETL components are tightly-coupled in the current ETL framework. Furthermore, complexity of components extensibility is another...

Software testing is the process of executing a program or system for finding any error or defect. Software testing strategy helps to convert test case designs into well-planned execution steps that will result in the construction of successful software. Software testing is any activity aimed at evaluating a capability of...

One of the fundamental aspects of ubiquitous computing is the instrumentation of the real world by smart devices. This instrumentation constitutes an opportunity to rethink the interactions between human beings and their environment on the one hand and between the components of this environment on the other. In this paper,...

In a wireless sensor network, eliminating redundancies in area coverage in the deployment zone represents a major challenge where the stake is its lifetime increase. Current works dealing with this topic use different deterministic or probabilistic techniques for nodes redundancies check. In this paper, the authors propose a quasi-quadratic time...

Cloud computing or simply rental computing, is a new technology currently being studied in the academic world and broadly categorized as Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS).Virtualization is the backbone of cloud computing and scalable, dynamic resources can be effectively managed using virtualization technology. It is possible to remap...

Flink has become an effective approach to big data analytics in large cluster systems, and with increasing needs of analysis this data Flink has become an effective technique for analysis big data and the need of optimized translator for SQL (Structured Query Language) query is very necessary to build efficient...

Because the advancement of the internet, several small and large firms have developed their dealings with customers to offer goods through the internet worldwide. Online credit card deception or no card present deception is gradually rampant in the latest years because that the credit-card is mainly exploited to demand payments...

In this paper, the authors is to provide an up to date survey of the technologies that enables high performance computing on general purpose personal computers. Multiprocessor or multicore computers are widely available these days along with graphical processing units installed for gaming and other high speed common computing. Researchers...

Keyword reduction is a technique that removes some less important keywords from the original dataset. Its aim is to decrease the training time of a learning machine and improve the performance of text categorization. Some researchers applied rough sets, which is a popular computational intelligent tool, to reduce keywords. However,...

The ever emerging technology world is leaving no sphere of the people's lives untouched. Technology has also made its foray into the learning space and has completely redefined the way learning is imparted. From structured and formal environment the learning space has evolved into a virtual, mobile enabled, informal and...

Cognitive radio is the restorative technology to authorize the efficient usage of restricted natural resource radio frequency spectrum for the wireless devices. The technology empowers the telecommunication industry by renovating the traditional static spectrum access approach to dynamic spectrum access to stimulate the unlicensed users to access underutilized licensed band;...

Mobile Ad-hoc NETwork (MANET) are formed by a collection of mobile nodes, each equipped with wireless communication capabilities, without relying on any fixed infrastructure. In order to maintain network connectivity, each node may act as an ad hoc router, forwarding data packets for other mobile nodes that may not be...

In Component-Based Software Development (CBSD) approach, the searching and retrieving of accurate reusable software components that are stored in large, distributed and heterogeneous-structured repositories is a tedious and time consuming process. This paper presents the design and implementation of ontology-based multi-agent software component retrieval system using semantic and structural formalism....

In this paper, the authors present an approach for transforming an existing XML schema in ODL (Object Definition Language) schemas, the authors chose oriented object database as a target database because there are many common characteristics between XML (eXtensible Markup Language) and object-oriented model, and they desire to have a...

The increasing capability to track moving vehicles in city roads enables people to probe the dynamics of a city. In this paper, the authors address the problem of detecting outliers and anomalies sources with trajectory data. Unlike existing anomaly detection methods, both spatial and temporal information are considered to find...

Scheduled algorithms in disc have a very important role in real time applications used in multimedia, in as much as the last ones generate I/O demands with their restrictions in real time. Both traditional algorithms and other two ones mentioned later during this study, serve to real-time tasks according their...

Large-scale wireless sensor networks are highly vulnerable to attacks because they consist of numerous resource-constrained devices and communicate via wireless links. As wireless sensor networks are continue to grow, so they need an effective security mechanisms. As sensor networks may interact with sensitive data and/or operate in hostile unattended environments,...

Now a day, system developers are faced to produce complex, high quality software to support the demand for new and revised computer applications. This challenge is complicated by strict resource constraints, forcing management to deploy new technologies, methods and procedures to manage this increasingly complex environment. Often the methods, procedures...

A Wireless Sensor Networks (WSN) consists of spatially distributed autonomous sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants. WSN contains a large number of nodes with a limited energy supply. A wireless sensor network consists of nodes that can communicate with...

The proliferation of e-services (e.g. e-commerce, e-health, e-government) within the emerging digital Identity Management Systems make Internet an undeniable convenient and powerful tool for users. However in this environment, users are required to manage several digital identities and a great number of personal data. As such, simplification of users' involvement...

In the market there is a wide amount of CASE tools for the design of relational databases. Object-Relational DataBase Management System (ORDBMS) emerged at the end of the 90's to incorporate the object technology into the relational databases, allowing the treatment of more complex data and relationships than its predecessor....

Wireless Sensor Network (WSN) is an emerging technology for monitoring physical world. WSNs consist of large numbers of sensor nodes operated by battery mostly in harsh environment. Thus energy conservation is a primary issue for organization of these sensor nodes. Another crucial issue is the data delivery time by sensor...

Mobile Ad hoc NETworks (MANETs) are self-created and self organized by a collection of mobile nodes, interconnected by multi-hop wireless paths in a strictly peer to peer fashion. Scalability of a routing protocol is its ability to support the continuous increase in the network parameters (such as mobility rate, traffic...

Data-acquisition involves gathering signals from measurement sources and digitizing the signal for storage, analysis and presentation on a PC. Analysis and prediction is very necessary in today's market for the accurate utilization of funds at hand. For analysis, there has to a proper system where in the required data is...

Nowadays Person Recognition has got more and more interest especially for security reasons. The recognition performed by a biometric system using a single modality tends to be less performing due to sensor data, restricted degrees of freedom and unacceptable error rates. To alleviate some of these problems the authors use...

Data mining has emerged as one of the major research domain in the recent decades in order to extract implicit and useful knowledge. This knowledge can be comprehended by humans easily. Initially, this knowledge extraction was computed and evaluated manually using statistical techniques. Subsequently, semi-automated data mining techniques emerged because...

Over the years the World Wide Web has seen a major transformation with dynamic content and interactivity being delivered through Web 2.0 and provision of meaning to Web content through the Semantic Web. Web 2.0 has given rise to special methods of eLearning; the authors believe that interactive multimedia and...

Fingerprint-which have been used for about 100 years are the oldest biometric signs of identity. Humans have used fingerprints for personal identification for centuries and the validity of fingerprint identification has been well established. In fact, fingerprint technology is so common in Human Identification that it has almost become the...

Mobile ad-hoc network is a collection of wireless mobile hosts forming a temporary network without the aid of any stand-alone infrastructure or centralized administration. Mobile ad-hoc networks have the attributes such as wireless connection, continuously changing topology, distributed operation and ease of deployment. In this paper the authors have compared...

This paper compares several methods of information extraction on the internet. Today, internet has become a treasure of knowledge. Every year, thousands of pieces of different information are posted on the internet. So, extracted information on the internet for many different purposes has become an important problem today. Users may...

Computer Science or Computing Science (sometimes abbreviated CS) is the learning of the theoretical foundations of information and computation, and of practical techniques for their execution and application in computer systems. It is often described as the efficient study of algorithmic processes that produce, explain, and transform information. In this...

Social networking sites such as Orkut, Tribe, or Facebook allow millions of individuals to create online profiles and share personal information with vast networks of friends - and, often, unknown numbers of strangers. Some of the information revealed inside these networks is private and it is possible that corporations could...

With the rapid development of a network multimedia environment, digital data can now be distributed much faster and easier. To maintain privacy and security cryptographic alone is not enough. In recent years, steganography has become attractive vicinity for network communications. In this paper, an attempt is made to develop a...

Brought up in 1990s, Wireless Personal Area Networks (WPANs) are the youngest members in the networking hierarchy. WPAN consists of number of nodes distributed in a given area, where a specific phenomenon must be measured and monitored. The construction of WPAN includes the physical deployment and the organization of its...

There are different Standards of digital multimedia transmission, for example DVB in Europe and ISDB in Japan and DMB in Korea, with different delivery system (example MPEG-2, MPEG-4).This paper describe an overview of Digital Multimedia Transmission (DMT) technologies. The economic aspects of digital content & software solution industry as a...

The paper introduces a situational approach for Web applications design. the authors, first, define development situations and identify their specific characteristics through situational factors in projects. Using these situational factors, the most appropriate design process-model is selected. A meta-modeling technique is proposed that integrates the Map formalism for modeling existing...

Facial expression classification is a kind of image classification and it has received much attention, in recent years. There are many approaches to solve these problems with aiming to increase efficient classification. One of famous suggestions is described as first step, project image to different spaces; second step, in each...

In this paper the authors propose a procedure for determining 0 - or 1 - cover of an arbitrary line in a combinational circuit. When determining a cover they do not need Boolean expression for the line; only the circuit structure is used. Within the proposed procedure they use the...

Cyber criminality activities are changing and becoming more and more professional. With the growth of financial flows through the Internet and the Information System (IS), new kinds of thread arise involving complex scenarios spread within multiple IS components. The IS information modeling and Behavioral Analysis are becoming new solutions to...

This paper presents a gradient based motion estimation algorithm based on shape-motion prediction, which takes advantage of the correlation between neighboring Binary Alpha Blocks (BABs), to match with the Mpeg-4 shape coding case and speed up the estimation process. The PSNR and computation time achieved by the proposed algorithm seem...

The complexity of multimedia applications in terms of intensity of computation and heterogeneity of treated data led the designers to embark them on multiprocessor systems on chip. The complexity of these systems on one hand and the expectations of the consumers on the other hand complicate the designers job to...

In this paper, the authors will study Lee, Kim and Yoo, a verifier password typed key agreement scheme and demonstrate that the scheme is not secure. Then, the authors will propose an enhanced verifier typed key agreement scheme relied on Lee, Kim and Yoo scheme and demonstrate that the propose...

RadioFrequency (RF) catheter ablation has transformed treatment for tachyarrhythmias and has become first-line therapy for some tachycardias. The precise localization of the arrhythmogenic site and the positioning of the RF catheter over that site are problematic: They can impair the efficiency of the procedure and are time consuming (several hours)....

A noise estimation algorithm plays an important role in speech enhancement. Speech enhancement for automatic speaker recognition system, Man - Machine communication, Voice recognition systems, speech coders, Hearing aids, Video conferencing and many applications are related to speech processing. All these systems are real world systems and input available for...

This paper outlines a methodology for aiding the decision making process for investment between two financial market assets (e.g. a risky asset versus a risk-free asset), using neural network architecture. A Feed Forward Neural Network (FFNN) and a Radial Basis Function (RBF) Network have been evaluated. The model is employed...

Ethernet is currently the most popular networking technology because of its high performance, low cost and ubiquity nature. Ethernets rely on the dynamic computation of a cycle-free active forwarding topology. For that it uses rapid spanning tree protocol. Unfortunately, it exhibits count-to-infinity problem that may lead to forwarding loops under...

Cloud computing - a relatively recent term, defines the paths ahead in computer science world. Being built on decades of research it utilizes all recent achievements in virtualization, distributed computing, utility computing, and networking. It implies a service oriented architecture through offering software and platforms as services, reduced information technology...

Digital watermarking system is a paramount for safeguarding valuable resources and information. Digital watermarks are generally imperceptible to the human eye and ear. Digital watermark can be used in video, audio and digital images for a wide variety of applications such as copy prevention right management, authentication and filtering of...

In recent years, many energy-efficient routing protocols have been proposed. However, very little efforts have been taken in studying the energy consumption of individual node, overhead and route maintaining issues. While not considering the design of energy efficient routing protocol, it may perform very worst than the normal routing protocol....

The new era of computing called Cloud Computing allows the user to access the cloud services dynamically over the Internet wherever and whenever needed. Cloud consists of data and resources; and the cloud services include the delivery of software, infrastructure, applications, and storage over the Internet based on user demand...

Genetic Algorithms (GAs) has innumerable applications through the optimization techniques and network optimization is one of them. SNMP (Simple Network Management Protocol) is used as the basic network protocol for monitoring the network activities & health of the systems. This paper deals with adding "Intelligence" to the various aspects of...

Cognitive networks are the solution for the problems existing on the current networks. Users maintain integrity of the networks and user node activity monitoring is required for provision of security. Cognitive Networks discussed in this paper not only monitor user node activity but also take preventive measures if user node...

Wireless Mesh Network is an application technology different from the traditional peer-to-peer wireless bridge; it provides the multi-hop and multi-path connection to form a wireless environment of MESH framework so that the occurrence of single point failure can be prevented. WMNs are to provide high bandwidth broadband service to a...

The main aim of this paper is to propose a solution to improve the life time of the network by reducing the no of active nodes that participate in communication. Life time of a WSN is improved through optimizing communication and minimizing energy usage. One way of optimizing communication is...

A public key cryptosystem is an asymmetric cryptosystem where the key consist of a public key and a private key. As the public key is public (known to all), can be used to encrypt the messages. The private key, kept as secret, can be used to decrypt the messages by...

Many companies include in their Information Systems (IS) several communicating heterogeneous middleware according to their technical needs. The need is the same when IS requires using context aware platforms for different aims. Moreover, users may be mobile and want to receive and send services with their PDA that more often...

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